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Tooling and method for precisely controlling weld size of v-shaped bellows

A technology of precise control and weld size, applied in manufacturing tools, workpiece clamping devices, workbenches, etc., can solve the problems of high manufacturing cost, low product qualification rate, and difficulty in controlling the weld width of bellows diffusion welding. Achieve the effect of reducing production cost, improving qualification rate, and accurately controlling the size of diffusion welding seam

Active Publication Date: 2022-05-17
AEROSPACE HIWING HARBIN TITANIUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems that the width of the V-shaped corrugated pipe diffusion welding seam is difficult to control, resulting in low product qualification rate and high production cost, the invention provides a tool and method for accurately controlling the weld seam size of the V-shaped corrugated pipe

Method used

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  • Tooling and method for precisely controlling weld size of v-shaped bellows

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Effect test

Embodiment 1

[0033] to combine Figure 1-2 Describe this embodiment. This embodiment provides a tooling for precisely controlling the weld size of a V-shaped bellows. The tooling includes a large dial 1, a small dial 2, a base 3, a tray 4 and a rotating bearing 5; wherein: The large dial 1 is circular, and the bottom surface of the large dial 1 is provided with a circle of the first circular ring protrusion 11 along its inner diameter edge; the small dial 2 is circular, and the small dial 2 The bottom surface of the bottom surface is provided with a circle of second annular protrusions 21 along its inner diameter edge; the inner diameter of the small dial 2 is equal to the inner diameter of the large dial 1, and the outer diameter of the small dial 2 is smaller than that of the large dial The base 3 is circular, and the inner diameter of the base 3 is greater than the inner diameter of the small dial 2, and the inner diameter of the base 3 is less than the outer diameter of the small dial ...

Embodiment 2

[0052] This embodiment also provides a method for accurately controlling the weld size of the V-shaped corrugated pipe by using the above-mentioned tooling, which is carried out according to the following steps:

[0053] 1) Clean the surface of the ring-shaped sheet to remove stains, and apply a layer of protective glue on the surface of the ring-shaped sheet;

[0054] 2) Put the plate processed in step 1) on the base (3), press the large dial (1) on the top of the plate, rotate the tray (4), and follow the outer contour of the large dial (1) Use a carving knife to score on the glued surface, remove the large dial (1), press the small dial (2) on the top of the sheet, rotate the tray (4), and follow the outer surface of the small dial (2). The outline is scored on the glued surface with a carving knife;

[0055] 3) Do not repeat the engraving when engraving;

[0056] 4) Control the force of the engraving knife to ensure that the protective glue is cut off without scratching ...

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Abstract

The invention discloses a tooling and a method for accurately controlling the welding seam size of a V-shaped bellows, and belongs to the technical field of V-shaped bellows processing. The tooling includes a large dial, a small dial, a base, a tray and a rotating bearing; the large dial is in the shape of a ring, and its bottom surface is provided with a circle of protrusions along its inner diameter edge; the small dial has the same structure as the large dial, and the small dial has the same structure. The inner diameter of the dial is equal to the inner diameter of the large dial, and the outer diameter of the small dial is smaller than the outer diameter of the large dial; the base is circular, and the inner diameter of the base is larger than the inner diameter of the small dial, and the inner diameter of the base is smaller than that of the small dial. The outer diameter of the disc; the large dial or the small dial is pressed above the base and the protrusion is inserted into the middle cavity of the base, and the base is pressed on the upper surface of the tray; the tray is disc-shaped; the rotating bearing is connected with the bottom of the tray. The tooling of the invention can precisely control the width of the diffusion welding seam, improve the qualified rate of diffusion welding, improve the production efficiency and the utilization rate of materials, effectively control the rigidity of the parts, and is suitable for the V-shaped corrugated pipe processing technology.

Description

technical field [0001] The invention relates to a tooling and a method for accurately controlling the welding seam size of a V-shaped bellows, belonging to the technical field of V-shaped bellows processing. Background technique [0002] V-shaped bellows are widely used in aviation, aerospace, ships and other fields because of their axial stress compensation. The use of diffusion welding to manufacture bellows has the characteristics of one-piece molding, the strength of the weld seam is the same as that of the base metal, good sealing, adjustable rigidity and high fatigue strength. Because the V-shaped bellows has the ability to compensate axial stress, a certain rigidity requirement must be met during the design process of the V-shaped bellows. In order to meet the design rigidity requirements, the width of the diffusion-welded weld of the V-shaped bellows must be strictly controllable. The traditional engraving method is laser engraving. Laser engraving will leave traces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25H1/10B25B11/00
CPCB25H1/10B25B11/00
Inventor 杨洋杨小克丁锐贺晓峰王好强
Owner AEROSPACE HIWING HARBIN TITANIUM IND
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